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Sentence

このエクササイズは腹ふっ筋きんに効ききます。

Span Details

pre-noun adjective

エクササイズ

は

topic marker

grammar

腹ふっ筋きん

abdominal muscles; abs

noun, suru verb

direction, time, indirect object, or target marker

be effective; take effect; work

-> 効くgodan verb

polite non-past